Can I make Apk from website with basic access authentication?

My web site has basic access authentication (html base).
If I use MIT App Inventor with basic access authentication. compiled Apk file shows access errors.
How can I add basic access authentication int Apk file for each user?

See here:

https://puravidaapps.com/snippets.php#2authurl

TIMAI2 san,
thank you very much.
I want to try it but I can not find "when screen1 initialize" block in block editor.
Could you advise me where I can find that block?

image

http://ai2.appinventor.mit.edu/reference/components/userinterface.html#Screen

Wow, thank you so much for your quick advice! Now I could found it.